ABSTRACT
To benefit from the potentials in the bending moment capacity of semi-compact Z-shaped steel sheet piles forming the infills of combined walls, four-point bending tests were carried out by the Institute of Structural Design at the Materials Testing Institute in Stuttgart in 2019. A FE-model was validated by back-calculating the tests followed by an extensive parametric study with different Z-piles. Among others the different geometries, which lead to different b/t-ratios and the steel grade were varied leading to a different compression flange slenderness. In addition, the lock state was varied to investigate the impact on the bending moment capacity as: Free lock rotation, crimped interlocks with different crimping densities and fully welded over the entire length. Three resistance models were investigated and evaluated for further development of Eurocode 3 Part 5.
